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Preparation method of polyving akohol nanofiber

A technology of nanofibers and polyvinyl alcohol, which is applied in fiber treatment, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of long synthesis time of polyvinyl alcohol spinning stock solution, high solubility requirements, and limited development, and achieve excellent Sewage treatment performance, simple processing method, better thermal stability and tensile strength

Active Publication Date: 2019-06-28
今御龙医疗科技湖北有限公司
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Problems solved by technology

However, in the preparation process of its spinning solution, the synthesis time of polyvinyl alcohol spinning solution is long, the temperature is high and the solubility requirements are high, which limits its development.

Method used

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  • Preparation method of polyving akohol nanofiber
  • Preparation method of polyving akohol nanofiber
  • Preparation method of polyving akohol nanofiber

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Experimental program
Comparison scheme
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Embodiment Construction

[0013] The present invention will be described in detail below in combination with specific embodiments.

[0014] 10g of polyvinyl alcohol powder and 3g of potassium persulfate were added to 87g of water, and stirred at low temperatures of 30, 40, 50 and 60°C for 1 hour respectively to complete the preparation of polyvinyl alcohol spinning stock solution under different synthesis temperature conditions.

[0015] 10 g of polyvinyl alcohol powder was added to 90 g of water, and stirred at a high temperature of 80° C. for 1 hour to complete the preparation of the polyvinyl alcohol spinning stock solution.

[0016] The synthesized polyvinyl alcohol spinning stock solution was injected into the syringe, and the electrospinning method was used to prepare polyvinyl alcohol nanofibers under the conditions of extrusion rate 0.5mL / hour and spinning voltage 20kV.

[0017] The prepared polyvinyl alcohol nanofibers were tested for fineness (diameter), and the results are listed in Table 1....

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Abstract

The invention discloses a preparation method of a polyving akohol nanofiber. The method comprises the steps that polyving akohol powder and potassium persulfate are added to water, and after stirring,a polyving akohol spinning solution is synthesized; the polyving akohol spinning solution synthesized at low temperature is injected into an injector, and the polyving akohol nanofiber is prepared under the conditions of the extrusion speed and the spinning voltage. The preparation method has the advantages that the processing method is easy to operate, energy consumption of synthesis of the polyving akohol spinning solution is reduced, and compared with a nanofiber prepared through a polyving akohol spinning solution synthesized at high temperature, the prepared nanofiber is thinner and better in thermal stability and tensile strength.

Description

technical field [0001] The invention belongs to the technical field of nanofibers, and relates to a polyvinyl alcohol nanofiber and a preparation method thereof. Background technique [0002] With the rapid development of nanomaterials, nanofiber preparation technology, especially electrospinning technology, has been greatly developed. Because polyvinyl alcohol is non-toxic, harmless and degradable, its nanofibers are almost non-polluting to the environment. At the same time, polyvinyl alcohol has unique properties such as oil resistance, abrasion resistance, solvent resistance, and film-forming properties; and the electrospinning technology of polyvinyl alcohol is relatively mature, with low equipment and test costs and high fiber yield , The prepared fibers have common advantages such as relatively large specific surface area and wide applicability. In recent years, polyvinyl alcohol nanofibers prepared by electrospinning have attracted much attention. Although the mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00D01F6/50D01F1/10
Inventor 林丽娜梁永红蔡映杰王强
Owner 今御龙医疗科技湖北有限公司
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